摘要
以钛酸丁酯、乙醇、硝酸为原料,采用溶胶-凝胶法制备玻璃负载型TiO2膜,用醋酸浸渍对其进行表面修饰以增加其光催化活性,用直接耐晒蓝染料模拟废水中难降解的有机污染物.研究结果表明,醋酸浸渍可以增加坡璃负载型TiO2膜光催化活性,当采用0 25mol/L醋酸浸渍玻璃负载型TiO2膜1h,TiO2膜120min内降解率由13 8%提高到42%.
In this paper,the TiO_2/glass photocatalytic films were prepared with sol-gel processing,and photocatalytic degradation were tested by photocatalytic decoloration of direct fast blue aqueous solution.The results shown that the photocatalytic activity of the TiO_2/glass photocatalytic films was enhanced after acetic acid treatment.When acetic acid aqueous consistency is 0.25?mol·L^(-1) and soak time is 1 hour,the TiO_2/glass photocatalytic films photocatalytic decoloration rate increased from 13.8% to 42%.
出处
《沈阳师范大学学报（自然科学版）》
CAS
2005年第2期186-189,共4页
Journal of Shenyang Normal University:Natural Science Edition
基金
辽宁省科技厅自然科学基金资助项目(2004218002).
关键词
二氧化钛
醋酸处理
光催化降解
titanium dioxide
surface acid treatment
photocatalytic degradation
